Latest Contributions by johnwoollett1

‎01-05-2017

Hi Thank you for the advice. We have been talking with ESRI here in the UK and I have been looking at the on line training. I would be grateful if you could point out any course that would help with my understanding of calibrating the routes from existing distance/length values. We are looking a linear referencing from a railway asset and work management point of view, rather than actual routing. Thanks again John W

‎12-23-2016

I am producing a railway diagram to show positions of faults and assets by linear measure. The lengths of line shown on the diagram are not the true lengths of track, but have been distorted for the diagram presentation. How do I get the linear referencing to use the true geographic lengths, which I have in a table, rather than the drawn lengths? Do I need to do a calibration? thanks

‎12-13-2016

I am using ArdGIS desktop, I am not looking to erase, just get a list of polygons from two feature classes that do not overlap

‎12-13-2016

I have two features consisting of polygon shapes. How can I run a query that gives me the areas in one feature that do NOT overlap areas in the other feature. Thanks

‎12-01-2016

Hi Thanks - thats useful John Woollett

‎11-30-2016

Hi Looks OK for a single marker, but not for a string of markers all along the route. Looks like I need to generate some data with the Route Identifier and event points incrementing at 100m somehow to plot out by dynamic segmentation. John Woollett

‎11-30-2016

Hi I need to create marker points along a route at 100m intervals and place a distance label on each one, how can this be done in the desktop? Thanks

‎11-29-2016

Hi Its in an oracle database, I want to reproduce a Functional Attribute from an Intergraph geoworkspace. I need to use FIND,LEFT,RIGHT functions to compile the result thanks

‎11-29-2016

I have a data table and want to perform an sql query to build a new column on the data containing data from several data columns, how can this be done? eg IF(FIND('-',Location_Code)=4, LEFT(Location_Code, 12), LEFT(Location_Code, 13)) thanks john woollett

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My Ideas

Latest Contributions by johnwoollett1

Re: calibrate a diagram

calibrate a diagram

Re: spatial difference

spatial difference

Re: create marker points along a route

Re: create marker points along a route

create marker points along a route

Re: generate a new column on a table

generate a new column on a table

Re: spatial difference

spatial difference